2021 Mercedes-Benz Sprinter 314 Progressive CDI 2.1L Diesel · WX71 KLL

The most recent MOT test on 2025-08-27 confirms the vehicle remains roadworthy, with no defects recorded at 201,808 miles. This represents a stable maintenance trend over the past year, as both the 2024 and 2025 tests passed without failings. The single 2024 retest on 2024-09-26—conducted on the same mileage as the prior failure—suggests either a minor administrative oversight or a test centre anomaly, rather than a recurring mechanical issue. No advisories or repeated faults appear in the record, which is a positive indicator of consistent upkeep. However, the lack of defects does not preclude hidden wear, particularly given the vehicle’s high mileage for its age. The recorded mileage progression reveals an unusually aggressive usage pattern. Over the span of just 18 months, the vehicle accumulated 51,106 miles, averaging approximately 28,392 miles annually—well above the typical 10,000–15,000 miles per year for a commercial van of this class. The gap between the 2024 failure and subsequent retest (a single day) is unusual and may warrant clarification, though it does not directly impact roadworthiness. Such high mileage demands scrutiny of high-wear components, including suspension bushes, coil springs, and brake calipers, which are likely nearing their serviceable limits. Given the absence of MOT-recorded faults, an in-person inspection should prioritise components not routinely tested, such as the condition of suspension bushes (particularly rear), which may exhibit cracking or excessive play after prolonged heavy use. The brake system, while not flagged, should be checked for uneven wear on discs or glazing on pads, especially if the vehicle has carried heavy loads. Structural integrity of the chassis and subframe is critical at this mileage, with attention to corrosion around wheel arches, sills, and exhaust mounts—areas prone to deterioration in a van exposed to varied conditions. The engine bay should also be inspected for oil leaks or degraded hoses, as the CDI system is susceptible to carbon buildup and fuel injector wear at this mileage.